Yes, we must always protect our winnings so that we are not negatively affected, control is something that always appears in our lives for everything, not everyone is focused, not everyone has that control, you can undoubtedly fail, that is what you should try to do, but it is very difficult to do it, you have to be very key when playing, here the only thing that affects is that you lose money and that is avoidable, there are many methods, we must use the one that best suits us and goes with our personality.
Use the one that will helps you in controlling your emotions, in gambling the best way to prevent losing a lot is to limit yourself, the way things are being offered now with the easy access of online gambling, if you don't have that limitation and if you can't control your emotion you can quickly lose a lot of money, worse, you can lose everything and regret after.
Unlike before when you go to casino you just bring such amount and after you lose you can go and stop and leave the house, with online access you can top up whenever you and the risk of getting aggressive can lead you to lose everything in your savings.